Directional Transport of Propelled Brownian Particles Confined in a Smooth Corrugated Channel with Colored Noise

Bing Wang; Hao Chen; Yong Wu

doi:10.1016/j.physa.2019.122779

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arXiv · 1905.10788

Directional Transport of Propelled Brownian Particles Confined in a Smooth Corrugated Channel with Colored Noise

Bing Wang·Hao Chen·Yong Wu

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Abstract

The transport phenomenon(directional movement) of self-propelled Brownian particles moving in a smooth corrugated confined channel is investigated. It is found that large $x$ direction noise intensity should reduce particles directional movement when the angle Gaussian noise intensity is small. The average velocity has a maximum with increasing $x$ direction noise intensity when angle Gaussian noise intensity is large. $y$ directional noise has negligible effect on $x$ directional movement. Large angle Gaussian noise intensity should weaken the directional transport. Interestingly, the movement direction changes more than once with increasing periodic force amplitude.

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Bing Wang, Hao Chen, Yong Wu. 2019-05-26. Directional Transport of Propelled Brownian Particles Confined in a Smooth Corrugated Channel with Colored Noise. https://doi.org/10.1016/j.physa.2019.122779

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